According to a doctor's estimation, the normal distribution N(6.4, 0.7) fits the adult femur length of a certain race stated in inches.   I.) Without technology, what range of lengths make up the middle 95%? How did you come to this conclusion? II.) what percentage of femurs in this race had a length between 6 and 7 inches? III.) Which length range makes up the middle 20% of femurs?

Q: Which branch of statistics is used to generalize the results to the population on the basis of the…

A: Solution-: Which branch of statistics is used to generalize the results to the population on the…

Q: The following table shows the birth weight data. Weight Frequency 5.8 – 6.3 4 6.4 – 6.9 4 7.0– 7.5 5…

A: Given data is  Weight Frequency 5.8 - 6.3 7 6.4 - 6.9 7 7.0 - 7.5 4 7.6 - 8.1 3 8.2 -…

Q: The life spans of three randomly selected tires are 32,100 ​miles, 41,900 ​miles, and 37,000 miles.…

A: By empirical rule: it says that for a normal distribution all observed data lies within three…

Q: Suppose that the length of research papers is uniformly distributed from 9 to 22 pages. We survey a…

A: To find 75 percentile of length of individual papers,  we need to find a constant c such that…

Q: Find the standard error of the mean for each sampling situation assuming a normal population o = 54,…

A: From the provided information, Population standard deviation (σ) = 54 Sample size (n) = 9

Q: From a box and whisker diagram which one of the following can not be seen or computed Select one:…

A: From box and  whiskers diagram We can calculate Minimum, First quartile (Q1), Median,Third quartile…

Q: Use the Normal model N (1168,50) for the weights of the steers.  A) what weight represents the…

A: Given,mean(μ)=1168standard deviation(σ)=50

Q: If the distribution is approximately mound-shaped, what is the proportion less than 80.12 ? 15

A: Find the value of z using mean and standard deviation.

Q: The gym teacher is told that the average height of the girls in her physical education class is…

A: Given: Population mean μ = 5'4'' Formula Used: Empirical rule: μ ± σ = 68% of the data μ ± 2σ = 95%…

Q: 8. A set of data is normally distributed with a mean of 100 and variance of 25. Approximately what…

A: Answer: 8) From the given data, Let X be the set of data which is normally distributed with Mean μ =…

Q: ISTED BELOW ARE SPEEDS MEASURED ON A HIGHWAY. USE SAMPLUE DATA To CONSTRUCT a 90%. COPIDENCE…

A: to find mean valuemean = sum of observations/ count of observationsmean = (60 + 61 + 61 + 56 + 61 +…

Q: Are any of the leaf measurements from the table the same as the mean? How many of the leaves were…

A: Given Sample size, n=20 Oak-Leaf Lengths: 78,69,62,74,69,51,45,40,9,64,65,64,61,69,52,60,66,71,72,27…

Q: As shown in the Crime Watch article of the local newspaper, 37% of the crimes in the county in the…

A: Given:  As shown in the Crime Watch article of the local newspaper, 37% of the crimes in the county…

Q: Archeologists excavating at a Viking site in Newfoundland have determined that the age of the…

A: Mean 95% of the artifacts are between 900 and 1100 years old.

Q: In a distribution with M = 3.40, SD = 1.47, what proportion of scores fall between 2.55 and 5.32?

A: Given that  M = 3.40, SD = 1.47 P(2.55<X<5.32)=?

Q: According to the CLT, the standard error A. decreases, gets smaller as the sample size n B.…

A: We have given that, According to the CLT, the standard error__as the sample size n __ We have to

Q: Use the Normal model ​N(100​,16​) describing IQ scores to answer the following.   ​a) What percent…

A: The Normal model N(100,16)Mean()=100standard deviation()=16

Q: Determine the following: Min = __ Q1 = __ Median = __ Q3 = __ Max = __ IQR = __ Range = __…

A: A boxplot is given. It is needed to define the Min, Q1, Median, Q3, Max, IQR and Range.

Q: At the particular courthouse, to increase his or her honor's statistical power, a judge can 1.…

A: Power of the test: Power of the test is defined as the probability of rejecting the null hypothesis…

Q: 110 adults with gum disease were asked the number of times per week they used to floss before their…

A: no.of times floss per week Frequency Relative frequency cumulative  frequency 0 19 0.1727 19…

Q: How many students got more than 40 marks in mathematics?  ii. How many students got between 60 and…

A: Cumulative frequency table is given :  Total student = 1400 We have to calculate : 1:    How many…

Q: Identify the data set’s level of measurement. “The average daily temperature (in degrees Fahrenheit)…

A: There are four levels of measurement. Nominal Ordinal Interval Ratio The variables are divided…

Q: b) The amount of money earned in a day by Ms. Anne's craft shop was recorded and displayed in the…

A: The range is the difference between the smallest and largest value. Stem and leaf is the…

Q: d) Sketch relative frequency histograms for each dataset below (these are discrete datasets; your…

A: a) here we have given data are 1,2,3,5,5 Based on the data shown above, we can construct the…

Q: Using the Karl Pearson's measure of Skewness, find the coefficient of skewness for each…

A: Since you have posted multiple sub-parts, we will solve the first three sub-parts for you. To get…

Q: 4 she is afraid of gaining that 'freshman fifteen' she keeps hearing about. She has weighed herse…

A: SOCS is a useful acronym. It stands for: Shape Outliers center spread Range = Max-Min

Q: 1.Check the skewness using Pearson's Index. 2. Based on your computation, is the distribution…

A: Given:

Q: The weight of all athletes on a college track team (men and women combined).   A) Would the…

A: a. The distribution of the weight of all athletes on a college track team both men and women…

Q: In a normal distribution, approximately what percentage of the data falls within one standard…

A: Step 1: Define how to use the 68-95-99.7/Empirical RuleAccording to the 68-95-99.7/Empirical…

Q: 1)Based on the data set that has five-number summary: min=13, Q1= 55, Med= 76, Q3=85.5, Max=91 a)…

A: (a). Range= maximum observation - minimum observation = Max- min =91-13 =78 (b). Q1= 55, so 25%…

Q: The standard deviation of the sampling distribution of difference scores is called the standard: A.…

A: Given information: The standard deviation.

Q: What was the sample size? What percent of participants had a score of 4? of 5? What is the score…

A: Given that,The frequency distribution is,Scoref71867752047332113total129

Q: 3. Using the data from Exercise 1, construct a frequency distribution for trauma. a. What level of…

A: Given a data table of race ,class ,trauma

Q: What percent of the observations in a distribution are LESS than the third quartile? O a. 25% O b.…

A: To find :  Distribution  are less than the third  quartile.

Q: The USDA prepared a report indicating that a family of four spent on an average $890 per month on…

A: Mean ()=890standard deviation ()=90

Q: A forest ranger has data on the heights of a large growthof young pine trees. The mean height is 3.2…

A: Denote the random variable X as height of trees. Here X follows normal distribution with µ= 3.2, σ=…

Q: Find the values of the UCL and LCL for the R chart for this data

A: Number of sub-groups = 20 Sample size n = 7

Q: The IQs of individuals form a normal distribution with mean = 100 and s = 15. A. What percentage of…

A:

Q: 3. Health issues due to being overweight affect all age groups. By community records, children aged…

A:

Q: Sample heights of twenty students in a class in inches: 60 62 62 63 64 64 65 65 66 66 66 67 68…

A:

Q: 110 adults with gum disease were asked the number of times per week they used to floss before their…

A: Frequency2 floss = total - remaining all = 110 -(12+9+13+17+17+17+13) = 12  Relative frequency7…

Q: Use the Normal model N(1102,85) for the weights of steers. a) What weight represents the 53rd…

A:

Q: 2. The lengths (in feet) of a random sample of suspension bridges in the United States, Europe, and…

A: